Fishing-tool.



E. l. SHARP.

FISHING TOOL. APPucATloN FILED 1AN.20. 19m.

Patented Oct. 24, 1916.

III

man@ v01/MM a distance below the top thereof.

sucker. rod is sucker-rodi.` Thecoiistruction relied upon to axis of the pump tubing through which the EDWARD J. SHARP, OF LOS ANGELES, CALIFORNIA, ASSIGN'OR OF ONE-HALF TO NELSON r. ANDERSON, or Los ANGELES, CALIFORNIA.

FISHING-Toor..

1,202,232. Specification of Letters Patent. Patented Applcationiled January 20, 1910. Serial 1\T o. 539,171.

and trouble is the provision a tubular body terminating at the top in To all whom z' may concern.'

Be it known that I, EDWARD J. SHARP, a citizen of the United States, residing at Los Angeles, in the county of Los Angeles and State of California, have invented a new and useful Fishing-Tool, of which the following is a specification.

This invention relates to a tool adapted for use in recovering from pump tubing and the like, sucker rods and the like, which may become detached either by breakage or by the unscrewing of parts inside the tubing at avoid such delay of the top of the segmental extension, said shank being laterally deliected or bent aslant to bring its upper end substantially in alineinent with the axis of the body.

The invention is capable of embodiment in various forms with the object of engaging rods of various structures at their upper terminals, for the reason that where the drical portion must be grasped, and in case it unscrewsor breaks at the box, the enlarged. box of the rod must be engaged.

An object of the invention is to provide a light, cheap, simply and easily made tool capable of fishing o-ut the sucker rods which become detached by unscrewing or by breaking of the box or rod between the box and pin or at any Vother place. rlhe accompanying drawings illustrate the invention. Figure l is a perspectiveview of the lishing tool detached. Fig. 2 is an enlarged broken perspective detail 'of the same. Fig. 3 is a fragmentary axial section of the tool shown in Figs. l and rod inside a pump tube. F 4t is a crosss'ectional plan of the tool on line m4, Fig. 3. Fig. 5 is a fragmental axial section of another form of the tool on line x5, Fig. 6. Fig. 6 is a sectional plan view of the tool on line Fig. 5. 4ig. 7 is aA fragmental perspective detail of another form of fishing tool illustrating the invention, as applied in pump tubing of large diameter. Fig. 8 is across section. Online x8, Fig. 7. F ig. j9 is a fragmental Yaxial section on line m9, Fig. l0, showing a form of the fishing tool adapted to engage a smooth rod. Fig. l0 is a plan in cross section upon line x10, Fig. 9. Fig. ll isv a view of one ofthe slips looking at the tip thereof. A section of the tubular body is also shown. Fig. l2 is a fragmental view'of the lower end of said slip. l

The fishing tool comprises a tubular body It frequently occurs that the sucker-rods of oil well pumps become separated or broken leaving sections of the rods at great distances below the surfaceA of the ground and from some cause such rods may becomebent andetwisted inside the tubing thus adding greatly to the difficulty of withdrawing them from the tubing. In fishing out suckerrods from pump tubing it is important that when the sucker rod has been once lifted it mustnot be dropped, because theY pump mechanism at they bottom of the tubing is liable to be injured if the sucker rod falls onto it from any considerable height.

An object of this invention is to provide a tool which is capable of being detachably connected with a sucker rod or other appliance of the same nature and which can be lowered into the tubing, and which will receive and automatically engage the upper end of the sucker-rod or other rod beneath the tool inside the tubing and tightly hold the same, so that when the to'ol is withdrawn it will carry with it the sucker rod vthus engaged and will not drop the same until the otherwise supported, as by the usual elevators.

Another object is to effect the foregoing by ya'construction that admits of the suckerrodhanging plumb while it is being withdrawn so that, if the broken end of said sucker-rod extends a considerable distance above the slip, asit often does, said broken end will not be tilted aslant relative to the sucker-rod is being withdrawn and so tend to catch onY thesides of the pump tubing, especially at the joints of said tubing, and cafuse delay'and trouble in raising the broken top 1n an upward extension 3 above the level extension and adapted to contract the passueker rod is broken between its ends a cylin- 2 engaging a sucker l having a shoulder 2 and terminating at thesage formed by the bore ofthe body adjacent the'v shoulder 2; Saidslipk may be fva-i a segmental extension and a shank fixed to of the shoulder, and a slip 4 running on the izo - fit the head and riously constructed and may be variously connected with the body of the tool to slide up and down therealong when the tool is in fishing position;

v In the form shown the slip is slidably fastened to the body of the-tool by means of a stud running in a slot 5 in the upward extension 3. Said stud in many instances is a bolt or rivet 6 fastened in the slip and extending through the slot and provided with a dove-tailed or flaring head 7 the walls of the slot being inwardly converging to loosely to retain the same while allowing the head to be flush with the outer grooved face of the extension.

In the form shown in Figs. 1, 2, 3 and 4 the slip is an oblong body having a wedgeshaped tip 8, the end of which is grooved, as at 9, to conform to the surface of the box 10 of the sucker-rod 11 to be caught, so that as 'the tool is lowered in the tubing the slip 4 may be lifted by the box 10 until the same leans over above the shoulder 2. This form of slip is employed in a tool in which the lower portion is a cylinder as shown at 12 in Fig. 2 and the upper portion is a segmental extension 3 of said cylinder l2, said extension being tapered at the top as shown at 13 and there fastened by rivets 14 to a J ated.

- mental extension though quite short shank 15, the upper end of which is provided with a pin 16for connection with the box, not shown, of the sucker-rod or other appliance by which the tool is to be oper- By reason of this construction the tool can be made at very low cost by simply cutting a short piece of pipe at right angles to form the shoulder 2 extending part way across,'and cutting away the pipe from said shoulder upward to form the segmental extension 3 and by then slotting said extension as at 5, riveting the slip `4 andthe extension together by means of the rivet 7 and riveting the shank 15 in place on the seg- 3 by the rivets 14 said shank may be formed of a piece of suckerrod provided on its upper end with the usual pin 16. In providing an extension above the shoulder formed by the tubular body said extension being segmental and the shank being a rod fastened to the tip of the segment allows free passage for the upper end of the sucker rod, which may have been broken below its pin, so that the tool body may be run down along the broken sucker rod for a considerable distance thus allowing the slip to take hold of the broken sucker rod far below its top so as to give 'greater security against anyr liability that the rod may slip entirely' through the tool after the broken sucker rod has been gripped. Said shank 15 extends aslant from the top of the extension 3 to bring the pin 16 into alinement with the cylinder 12. The

" slip 4, slot 5 and stud 6 arevrelatively pro'- portioned andv arranged so as to allow .the

inner straight face 17 of the slip to slide in between the body of the ,tool and the box 10 or the pin 18 after the shoulder of the pin 18 has come above the shoulder 2 of the tool body.

The shank 15 is elongated, being of considerably greater length, say 1?? times as long as the cylinder and its segmental extension; and extends aslant over the extension and terminates at its upper end as shown at 16 in Fig. 2 in axial line with the cylinder 12, so that when the tool is lowered and the cylinder encircles the sucker-rod to be fished for the tool may pass down until the upper end as at 16 has passed the end of such sucker-rod without any stoppage of the tool, so that on the reverse vmovement a certain and secure hold upon the sucker-rod can be had by the tool. In practice, however, it is not desirable that the upper end of the sucker-rod should extend too far up and when the slip is engaged and the suckerrod of the tool is drawn up, the sucker-rod hangs plumb and practically centrally of the tool, thus avoiding kinking or buckling of the rod or any liability of the end of the rod sticking out or catching upon joints of the tubing.

In practical use with the form shown in Figs. 1, 2, 3, 4, 11 and 12, the tool having beeny attached to the sucker-rod at the top of the well will be lowered into the pumptubing 20 until the flaring shoe 21 of the tool comes to the rod. The external diameter of said flaring shoe corresponds approximately to the internal diameter of the pump tubing 2O in which it is to be used so that the sharp lower edge of the flaring shoe will enter between the body of the tool and the box or pin as the case may be of the rod to be fished, and this will cause the upper end of the rod to come into alinement with the tubing. The box or pin as the case may be will strike the lower end of the slip andwill push the slip up until the shoulder of the pin passes the shoulder 2 of the tool and thereupon the slip will slide down inside the box or pin and the pin will lean over kto bring the shoulder thereof immediately above the shoulder of the tool as shown in Fig. 3. When this has occurred and the straight face of the slip is behind the pin or box of the rod to be fished, said rod is positively engaged by the tool and cannot be released until the tool is sufficiently withdrawn from the pump tubing to allow the sucker-rod to be grappled and upheld by elevators or other device, not shown, whereupon the fishing tool may be lowered and the slip lifted up out of the way so that the fishing tool may be withdrawn from the sucker-rod.

In the form shown in Fig. 5 the slip 22 is provided with a barb 23 and with a toothed shank 24 to facilitate engagement with the rod, and the stud 25 is formed integral with outwardly from the line of direction the shank of the-barb and may be upset or i otherwise loosely secured in the slot 5, so as to allow it to slide up and down.

In the form shown in Fig. 7 is provided with two arms 27 that are pivoted to the slip and are adapted to fall upon and rest on the shoulder 2 when the slip is down, and to thus support the shoulder of the pin. j

In Fig. 9 the body o-f the tool is provided internally with an upwardly flaring serrated face 28 and the like face 30. Said faces 28 and 30 are adapted to be brought close together by the weight of the slip to engage the cylindrical portion or shank of a sucker-rod which has been broken between its pin and box.

In all of the slips the tip is preferably tapered and grooved as shown at 9 in Figs. 11 and 12 so that when the tip reaches the broken box 10 on the top of the broken sucker-rod, it will not lodge inside said box instead of outside and therefore sucker-rod does not lean aside to pass the slip atthe first engagement therewith it will not catch on the tip in such a way as to prevent the tip from wedging it over into the leaning position stopped at the upward limit of'its movement above the shoulder.

The form shown in Figs. 1, 2 and 3 is desirable for smaller sized pump tubing in which there is but little space between the boxing 10 of the broken sucker-rod and the wall of the tube. The form shown in Figs.

the slip 26 7 and 8 is designed for pump tubing thatl is considerably larger in diameter than the boxing 10 of the broken sucker-rod. In such cases there is so much space inside the tubular body 12 that the sloping shoulder of the pin 18 of the sucker-rod seen in Fig. 3 might escape from the shoulder 2. Therefore pivoted arms 27 are provided to rest on the shoulder-2 and said shoulder 2 is preferably recessed as shown at 31 to receive the arms 27 when they drop after the shoulder of the pin has passed the same, and to hold the arms from spreading apart so that when the tool is drawn up, the arms 27 which are spaced apart a distance only slightly greater than the diameter of the rod body 11, will be held from spreading apart when the sloping shoulder of the pin strikes them. The arms are rounded atA their ends to allow them totilt up easily to pass the sucker-rod box and the pivots are set slip 29 is provided with av when the slip is finallyv arms when thus raised, so that the arms will fall by gravity to rest on the shoulder 2 when the sucker-rod box is passed.

It is understood that any of the slips may be serrated if desired, as shown in Figs. 5 and 9, it not being deemed necessary that the straight face 17 be smooth and plain as shown in Fig. 3; the form of slip shown in Figs. 5 and 9 being capable of having arms 27 mounted thereon in the same mannerv as shown in Fig. 7.

By constructing the tool with a segmental extension 3 extending above the level of the shoulder 2 a iirm attachment for the shank 15 is provided and the requisite strength for the tool is secured at the sides of the slot 5 with ample space between the shank and the walls of the tubing 20 to accommodate the end of the sucker rod which may be brokenoff above the joint, thus to allow the tool to be lowered down to the joint of the broken sucker rod in the same position shown in Fig. 3, whether or no, the sucker rod has been broken at the joint, as shown, or at a considerable distance above such joint.

I claim 1. A fishing tool comprising abody having shoulder and an upward extension above the shoulder, a slip running on the extension and adapted to contract the bore of the body adjacent the shoulder and provided with pivoted arms spaced apart to receive the body of a sucker-rod between them and adapted to rest on the shoulder when the y slip is at its lower position.

2. A fishing tool comprising a body having a shoulder, a slip adapted to run on the body above the shoulder there being a passage behind the shoulder and said slip being adapted to contract said passage and provided with a grooved and tapered tip, and also provided with shoulders, arms pivoted to the slip above the shoulders and spaced apart and adapted to rest upon the shoulder and said body when the slip is in its lower position, thus to support the shoulder of a sucker-rod when the tool has been slipped down over the same.

In testimony whereof, I have hereunto set my hand at Los Angeles, California, this 12th day of January, 1910.

EDWARD J. sHAEP. 

